Rock-drill making and sharpening machine.



- MUHALE.

ROCK DRILL MAKING AND SHARPBNING MACHINE.

3 SHBETS'SHEET 1.

Patented Aug. 22, 191i.

APPLIOATIdN FILED JULY 16, 1910.

WIINESSES:

ATTMNEYS M. MOHALE.

ROCK DRILL MAKING AND SHARPENING MACHINE.

APPLICATION TILED JULY 10. 1910. 1,001,545 P ented Aug. 22, 1911.

3 SHEETSSIIBET 2.

0 w M N M. McHALE.

ROCk DRILL MAKING AND SHARPENING MACHINE.

APPLICATION FILED JULY 10, 1910.

1,001,545. Patented Aug.22, 1911.

8BHEETS-SHBET 3.

ATTORNEYS MARTIN MCHALE, OF PHOENIX. BRITISH COLUMBIA, CANADA ROCK-DRILL MAKING Specification of Letters Patent.

AND S 51 ARIENING MACE-UN L.

atented Aug. W. 191 I.

Application ttletl July H5. 1910 Serial No. 572.312.

To (IN whom 'it may ('(lllt'rl'ni lle it known that l. alwlz'ris .\lt llama. a subjeel ot'"the hing ol' tireal llritain. aml a resitlent ol lhoenix. in the lrovinee ol British Colnmhia antl Dominion ol' (,anatlzu;

have lIlYtlltttl a new and lmproveil ltoelc- Drill lvlaliing antl Sharpening Haehine, ol' \Vlllt'll the 'l'ollowin; is a l'ull, el ran aml e.\- 3

act (leseription.

Among: the principal ohieels whit-h the present invention has in view are: to provitle a n'iaehine ol' the ehara ter nameil with means for shaping .througrh sueeessive op 5 the luatls ol (lrllls as ileslretl tol (|lllt'l\'l era t ions provnle varying in ans 't'or ]'ttl(lll aml the (lies 'lor forming" the sanl hemls;

t0 provitle a maehiue ol the eharaeter lltllllttl ting' tleviees earrietl by the saitl sharpening meelutnism; aml to proville a machine of the eharael'er named with an adjustable anvil having, a plurality of pockets to hohl tlrills oi various lengths.

()ne eml'mrliuientof the present invention the aeeompartying drawings, in \\'lll 'll like Characters of rt-tl'erenee denote eorrespontlin parts in all the views, aml in \vhieln Figure l is a sitle elevation of a maehine constructed and arranged in aecortlanee with the presen t invention; Fig. 2 is a horizontal section taken on the line in Fig. 1: Fig. 53 is a rear end elevation of the same; Fig. l is a (let-ail view in perspective; aml on an enlarged scale, of the male l'uller the employed in this invention; Fig. 5 is a detail view in perspective, antl on an enlarged scale, of the female .luller (lie emplovetl in this invention; Fig. 6 is a tletail view. on an enlarged scale tllltl in perspective, of the (lie clock for truinp; the vanes ot the (l rill litiltli Fig. 7 is a detail view in longitudinal sew tion, at the turret (lolly 'l'rame aml (lUll Y mounted therein, illltl the :uljaeeut lower rnemher ot' the turret guitle plates emplovetl for aliuing the (lrill to reeeive the tlollv: Fig. 8 is a tltltlll view in vertieal seetion. the seelion being; taken on the line a S in l igr. aml Fig. 9 is a tletail view, fragmentary in form and on an enlarged seale, showing the rotary guides for holding the (lrills while being set by the dollies,

extension 2:. is thselosett 1n the structure illustrated in ln the preliminarv stage ol' l' rmint a tlrill. the eml ol' lhe ar on \vhieh the tlllll h atl is to he l'ormetl is pla etl over. the female l'uller (lie 1.). 'lhe tllt 153 eonstitntes the anvil on whieh the male taller (tie it; tlrops. The (lie has l'ormetl therein a verlieal slot or reeess l7. Upon the upper erl re ol' the walls Forming the reeess 17 are llat-surl'aees 'lS aml l9. 'lhe snrl aees to, 1%

are provitletl to reeeive the surl'aees 21, "ll when the tlll' lti rests upon the the 15. The surlai'w 19. l?) are in this position -:eparatetl 'l rom the surl aees ill, :80 the thieltness ol the raillal vanes ol the (lrill heatl. 'lho tlrills l'or whirh the present maehine is tle ignetl are ])l't)\'l(l(*(l with tour laterall exten leil ratliallv ilisposetl vanes. When in the operati n ol' the (lie l(l the metal of the bar is beaten flown so that the sul'laees ll, Qt rest upon the surl'aees ls, 1B. the metal is so HWafJt'tl that two vanes exteml lateral]; lie-- tween the surl'aees 1t). 1t) aml the snrl'aees it) 20. while two vanes are extemletl verti- -all v into the reeesses 1T an l 22 in the (lie 15 antl the (lie lti. This operation results in roughing: into shape the heatl for the tlllll.

'lhe tllt 15 is pi ovhletl with a ilovetail \vhi h ritles into a. groove l'ormetl in the anvil ll. The (lie to is rip;- itll H't'tll'ttl to a piston l'tltl 3J3 amt mounteil in a gnitle heart it 'lhe piston l't tl 25 is provitletl with the usual piston lll'lltl tlisposetl in a evlimler ii. The vlimler ET is provitletl with the usual aut matic operating heart 38, lrv the operation ol' which a rapid sueeession ol' reeiproeatitms is impartetl to the piston l'tltl 2.3 amt the (lie 1t) mountetl thereon. The evlimler 3T l'orms part ol' an air engine which may he ol' anv approvetl type. the air supply heilu, tleliveretl hv a pipe 28. 'lhe supply through the pipe J8 is ontrolh-tl Irv a valve 2!) \\lll('il is operatetl t'rom a .l'oot petlal lit). whieh petlal Ia) is rigritllvattaeheil to a shall it mountetl in suitahle hearings in the sill $12 of the mafehine. The shall H is eonneetetl with the valve 2.) lav means ol' a lever arm I321. a lever arm it! aml a eonneeting l'tltl ii) pivotallv atlaeheil to amt extending hetween the sahl lever arms. The shall It ia roehetl to the position wherein the who 29 is eloseth by means ot a weight 316 atljuslalilv mountetl upon a. IOtl it? (Xlt'lltlttl l'rom the shal't ll. The eylintler 27 is ol' the type wherein there is normally maintained trapped air untler the piston eonneetetl with the piston Will 9:,

' posed vane shapes the top of the said vane to correspond with the inclination of the face 42. The drill is gradually. rotated until eachof the vanes. thereof have been shaped or sized by thed'ie 39 and the face 42 thereof.

It is to hold the die 39 in the recesses 22 and 41 that the locking plate 43 isprovided.

The locking plate 43 has formed thereon an extension 44 which rests upon the overturned guide plate 45 and between the hinge lu s46, 46 formed thereon. Between the with series of dollies 'the side spring for scttingthe pin 53 is mounted hinge lugs 46, 46 ispivotallymounted an eccentric head 47. Rigidly connected therewith is a lever48. When the lever 48 is thrown to the position as shown in Fig. 4-

of the drawings and the'plate 43 is lowered so that the extension 44 thereon-is between the lugs 46, the eccentric head 47 impinges "upon the extension 44 and locks the plate 43 rigidly in position. In this pos tion the plate 43 is extended to therear of the die 39 and prevents the withdrawal-of the same f from the recesses 22 and 41 When the head of the drill is thus roughly formed, the next. step in the -operation is to set or'sharpen the cutting edges on the vanes. It is for this purpose that I employ the dollies 49,49. It will be understood that the present machine is designed to .ac-

,commodate all of the usual sizes of'drills.

For this. purpose the machine is provided 49 which are slidably' mounted in annular flanges 50 extended from a hub 51, which flanges and hub constitute a turret mounted on ashaft 52. .Theturret when rotated into position is locked by'a latch pin extended through plates 54 of" the machine. The

within :1 casing 55. -The dollies are, as stated, slidablyniounted in the flanges- 50, 50. a groove 56 being formed in each of the said dollies to receive a the said'dollies slide. Each of the dollies is provided with a suitable head- 58, having formed therein die grooves 59 diametrically disposed andc'rossed' at an angle of 90 at the center. The grooves 59 are provided' to formthe cutting edges of the vanes of the drill .when the dolly 49 is driven againstthc end of the said vanes after the same. have been roughed as above dfiscribed.

feather 57 on which.

To drive the dollies'49 against the head ofthe drill I have provided a weighted hammer head 60, which' is rigidly mounted on a piston rod 61. The piston rod 61 is suitably provided with a piston head within a cylinder 62 of a suitable air or steam engine. The cylinder 62 is provided with an automatic head 63 .to which air" is admitted through a pipe 64 in a manner similar to that above described with reference to the operation of the cylinder 27 and engine con .nected therewith. v 1

The supply of compressed air from the pipe 64 is controlled by a'valve 65, which in turn iscontrolled through lever. arms 66 and 67 vand a connecting rod 68 pivotally attached to the said lever arms. The lever arm 67.is rigidly attached to a shaft 69, to' which is rigidly attached afoot pedal, 70.

The foot pedal 70 is operated to open the valve 65 to admit air to the cylinder 62.

The said valve is.closed by a weight .71

mounted on an extended rod 72-which operates to rotate the shaft 69 to, close the valve 65.

When the valve 65 isropened by means of the automatic head -63, the air is admitted 'to the cylinder in such a manner as to cause a rapid reciprocation'of the piston rod 61 and the hammer 60 connected therewith. This operates to impart a rapid successive" number of impacts upon the dolly 49 which I at the time happens to be in line with the hammer 60.

Thedrill head is maintained in alined position with eachof the dollies by means" of two turret "plates 73'. and 74. Theturret plates 73 and 74 are each rovided with a series of half circular dies' 5 I plates? 3 and 74 are arranged to be rotated in unison in. a manner similar to the mutual rotation of gear'wheels, with the re-.

and 76. The

sult thatwhen the dies are brought in linewith, the rotative centers of the two plates the two half dies unite to form a full Oil.- .cular die, 'asshown in Fig. of the draw* ings; These dies are provided with alining blocks 77. The: blocks (77 are square cornered to fit within the recesses between I the vanes of the drill as formed in the fullerdies' 15 and 16. By thu's holding the-heads of the drills, the same are alined topresent the cuttingedgs thereof to the grooves 59;

59 in the'dollies 49., 'ous sizes of drills, the half dies '75 and-76 are formed to various diameter's and the blocks 77 therein are shapedto correspond.

, The lower turret plate 73 carrying the dies 76'is'c'onnected with the dolly turret, I

the hubs of the two turrets being truncated to abut at 78. This arrangement n'sures the constant alinement of the dies 76"corre- I sponding to the dollies 49'. The upper turret plate 74 is mounted in a yoke frame 79. The

yoke frame 79 isv mounted on the lower end of a piston rod 80, which carries a piston bead suitably disposed in a cylinder 81. 'lh'e.cylinder St is adapted 't'or employment as an air pressure cylinder. the compressed air being received l'rom a pipe 82, and coir trolled for admission into the said cylinder through a valve S3 which is opened and closed by a handle t.

\Vhcn in theoperationthedollyturret and the lower die turret T3 are rotated to present the proper dolly and (lie Tt': tor the drill being treated, the piston rod 80. yoke l'rame 79 and the upper turret plate 7i are raised from contact with the said lower turret. plate T3. The upper turret plate is then rotated to correspond with the lower turret plate. a latch pin being withdrawn from the series of registering holes with which the turret plate Tat. is provided, and the said plate shilt ed as stated. When the said plate "It adjustet'l, the pin 85 is released and per mitted to drop into one of the said register ing holes to align the plate 74, and to maintain the tlllfltll'ltllt in the successive operations and until further adjustment. The latch pin 85 and means for locking the plate thereby is of usual construction.

When employing the turret plates 73 and H for holding the l *ads at the drills being treated. and after the lates-havc been adjusted to any particular size of drill head under treatment. the valve 93 is so operated by the handle 8 t that the piston rod 80 and I'ra me 1".) carried thcreliy are alternately lit'ted when the drill is being removed or placed in the die 76 in the lower plate 73.

The pressure applied by means of the cylinder 81 is positive. and si'ilticiently strong to irevent anv vibration on the )art on the drill head during the sharpening process, occasioned by the successive strokes of the hammer tit) upon the dollies 49. In this manner the setting and sharpening of the drill heads is quickly and accurately perlormed when using a machine of the character herein described.

.rlountcd upon an extended rail 86 is a weighted anvil 87. The anvil 87 is mounted on carrying wheels 88, 88, and is moved lengthwise on the said rails 86 by means of a, chain 8!), which is engaged by a pulley 90 and supported by an idler 91. The pulley W) is driven by an internal gear wheel 92, with which the teeth of a small pinion are meshed, the pinion being formed on the end of a shaft 93, which supports a hand wheel tr] in position convenientfor its manipulation by the operator in charge. The inter nal gear wheel 90 is mounted on a shaft 95, as seen particularly in Figs. 1 and 2 of the d ra win gs.

The anvil 87 is provided with pockets 96 and 97 respectively. The pocket 96 is located-at the 't'orward end of the. anvil 87. The pocket J? is mounted upon an apron 98 secured to the anvil in the manner shown in Fig. l of the drawings. The purpose of the construction of the anvil ST wherein are formed the two pockets tilt and 9?, is to provide tor a quick and ready adaptation ot the machine for supporting drills ol' ditlerent lengths. It will be understood that when the drills are being set and sl'iarpened by means ol the (lollies it). the butt end of the drill rod rests in one or the other of the said pockets't ti or 97, and in such manner that the blow of the hammer (it) is transmitted through the dolly -l-t) and the drill rod, dircctly upon the anvil 87 and the pocket 96 or 97, as the case may be, thereby relieving the dies 75 and 76 from the strain of the impact of the han'uner blow.

The bed of .oe machine is supported on heavy sill plates 5)!) in which the face plate 100 ol. the engine embodying the cylinder 62 is mounted. The ,sill plates 99 in turn are supported upon the sills 32. The rails 86 of the extendedframe for mounting the anvil 87 are supported at the far end by standards 101.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1,. in a rock drill making and sharpening nuichine, a plurality of movable turret plates having peripherally carried therein matched die members for holding the head of drills when matched; and means connecting said turret plates for moving the same in harmony.

2. In a rock drill making and sharpening machine, a plurality of rotatable turretplates having disposed in the periphery thereof a plurality oi matched half dies, said dies (littering in size and shape; and a synchronizing mechanism for disposing in matched relation the said dies.

3. In a rock drill making and sharpening machine. a plurality of rotatable turret plates having disposed in the peaiphery thereof a plurality ot matched half dies said dies difh ring in size and shape; a synchronizing mechanism for disposing in matched rela tion the said dies: and means for moving said plates to and from each other to close and open said dies.

4. in a rock drill making and sharpening machine, a rotary dolly turret having slidably mounted therein a plurality of ditl'erno ently shaped shaping dollies.

5. Ta a rock drill making and sharpening machine, a rotary dolly turret comprising separated plates having alined perforations; a plurality of dollies slidably and guidedly mounted in said plates, said (lollies being shaped to differently shape the ends of drills of the character mentioned.

6. In a rock drill making and sharpening machine, a dolly turret comprising a ph1- rality of separate disk flanges rotatable about a common center, and having near the periphery thereof a series of perforations,

said perforations in said flanges being alined; a plurality of guide members being disposed between said flanges; and a plu- In testimony where0f-;T, haye signed tl is specification in the presence or two subscrlb- 10 mg witnesses.

MARTIN McHALE. [L. 8.

Vvitne sses:

A. E. GALPIN, GEo. U. WEST. 

